Before the Nemo ride in The Living Seas at Epcot

Q: Before the Nemo ride in The Living Seas at Epcot I remember another ride but cannot remember its name. I remember that it stated with a movie and then a ride. Do you know the name?
Carrie, Poland, New York

A [Dave Smith]: When The Living Seas first opened, guests would see a film, The Seas, then "descend" into the depths of the sea in Hydrolators. They would board two-passenger Seacabs for a three-minute ride through a 400-foot long tunnel, offering views through large windows of the coral reefs teeming with fish and other sea creatures, before arriving at Sea Base Alpha. The short ride in the Seacabs did not have a name; it was closed around 2001.

[Marcio Disney]